The bracket inside the LRE changes

[mojtabaahmadi2020tl]

main code:

\documentclass{report}
\usepackage{xepersian}
\settextfont[Scale=1.2]{Yas}

\begin{document}

\begin{center}
 \LRE{[a=b]} 
 \\
\LRE{[a=\lr{b}]}  
\\
\LRE{\setlatin[a=\lr{b}]} 
\\
\LRE{[a=\lr{b}c]}     
\end{center} 
 
\end{document}

output:
[a=b]
[a=b[
[a=b[
[a=bc]